MEDIUM

GHSA-5cxf-xx9j-54jc

Multiple Cross-Site Scripting vulnerabilities in TYPO3 backend

Quick fix

GHSA-5cxf-xx9j-54jc — typo3/cms: upgrade to the fixed version with the command below.

composer require typo3/cms:^6.2.16

Details

Failing to properly encode user input, several backend components are susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML or JavaScript.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/typo3/cms

Introduced in: 6.2.0Fixed in: 6.2.16

Fixcomposer require typo3/cms:^6.2.16

Packagist/typo3/cms

Introduced in: 7.0.0Fixed in: 7.6.1

Fixcomposer require typo3/cms:^7.6.1

References

https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2015-12-15-1.yaml[WEB]
https://typo3.org/security/advisory/typo3-core-sa-2015-011[WEB]
https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2015-011[WEB]